Standard Methods for the Examination of Water and (1992)

by John
Venue:290.5491.521 Catling PM, Wojtas W (1986) The waterweeds (Elodea and Egeria, Hydrocharitaceae) in Canada. Canadian Journal of botany 64: 1525-1541 doi:10.1139/b86-208 Cook CDK, Urmi-König K